The dog trainer has never been publicly named, nugnug.
Jodi's trainers (DCs) were dark blue with white piping and laces .
Jodi always wore her glasses, yes.
From memory, Luke sent the first message, but I'm far from sure on that, and would have to check. JuJ seemed to think Jodi "must have" texted Luke (since, according to JuJ, she had just ungrounded Jodi), however, for that to be the case, there would have had to be three texts - one from Jodi saying "Hey, I've just been ungrounded, are you coming out tonight" one from Luke saying "Cool, you want to come down here after tea?" and a third from Jodi saying, "Sure, I'll be down later."
But the official line is that there ere only 2 texts, from memory, Luke saying, "Are you coming out tonight, fancy coming down here after tea" and the response from Jodi "Yeah, I'll be down (or see you there) later."